gpio_add_raw_irq_handler_with_order_priority_masked() function

Adds a raw GPIO IRQ handler for the specified GPIOs on the current core In addition to the default mechanism of a single GPIO IRQ event callback per core (see gpio_set_irq_callback), it is possible to add explicit GPIO IRQ handlers which are called independent of the default callback. The order relative to the default callback can be controlled via the order_priority parameter (the default callback has the priority GPIO_IRQ_CALLBACK_ORDER_PRIORITY which defaults to the lowest priority with the intention of it running last). This method adds such an explicit GPIO IRQ handler, and disables the "default" callback for the specified GPIOs. A raw handler should check for whichever GPIOs and events it handles, and acknowledge them itself; it might look something like: \code{.c} void my_irq_handler(void) { if (gpio_get_irq_event_mask(my_gpio_num) & my_gpio_event_mask) { gpio_acknowledge_irq(my_gpio_num, my_gpio_event_mask); // handle the IRQ } if (gpio_get_irq_event_mask(my_gpio_num2) & my_gpio_event_mask2) { gpio_acknowledge_irq(my_gpio_num2, my_gpio_event_mask2); // handle the IRQ } } \endcode